vena paraumbilicalis vs paraumbilical vein

vena paraumbilicalis and paraumbilical vein both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena paraumbilicalis	Yes	No	No	No
paraumbilical vein	Yes	No	No	No

As nouns, vena paraumbilicalis and paraumbilical vein are synonyms defined as:

vena paraumbilicalis and paraumbilical vein: small veins arising in skin around the navel; terminate as accessory portal veins

vena paraumbilicalis (noun)	paraumbilical vein (noun)
small veins arising in skin around the navel; terminate as accessory portal veins	small veins arising in skin around the navel; terminate as accessory portal veins